- RWTH Aachen University
- Maastricht University
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- IRCCS San Raffaele Scientific Institute
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- Center for Vein Restoration
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- Erasmus University Rotterdam
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- Erasmus University Rotterdam
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- George Washington University
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- University of California at Davis
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- University of Michigan, Ann Arbor
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- Indiana University Bloomington
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- University Consortium Humanitas
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- University of Michigan, Ann Arbor
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- Universidad Espíritu Santo, Ecuador
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- IRCCS Istituti Clinici Scientifici Maugeri S.p.A. SB - Pavia
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- The Harley Street Heart and Vascular Center
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- Venous and Lymphatics Disease Institute
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- Universidad de Buenos Aires
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- Nicolaus Copernicus University in Toruń
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- Dallas Noninvasive Vascular Laboratory
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- University of New South Wales
External person
- GVM Care and Research S.p.A.
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- Universiti Putra Malaysia
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- Medical University of Silesia in Katowice
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- Instituto Brasilerio de Flebologia
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